Fitting a turbo - Alfa Romeo Forum
You are currently unregistered, register for more features.    
Thread Tools Search this Thread
Status: - Update
Posts: n/a
Fitting a turbo

Depending on what happens with the gearbox here,s an idea .
A friend bought a saab 9000 turbo auto.The transmission appears to be broke,since he paid only 50 for it he,s thinking about scrapping it,this gave me an idea,turbo 155 sounds good.
As i,m a welder i think i could make all the relevant pipe work e.g. manifold,exhaust,air intake.
What other things do i need to know like oil supply to the turbo,would the engine take it,can the injection system cope.
What about the intercooler,do i need it.
Anything else i,ve missed
Is this a dream or is it possible.
Advice please,cheers
Sponsored Links
Status: - Update
Posts: n/a
Wonder if you would need a remapped chip or ECU ??
If it worked, it would be cool to see it blast past at Knockhill !!!

Status: - Update
Posts: n/a
you'll need to either lower your compression or run v' low boost. or a combination of both.

Higher compression means the engine will have more power off boost so makes the whole thing a bit more drivable.

You'll need an oil feel for the turbo.. manifold, & less restrictive exhaust, mapping etc.. you may need the fueling checked as the Q4 runs at about 2.5-3 bar (I can't remember exactly)

Oh & with all that power.. LSD?

Go for it.. you know you want to.. wink
Ian Spring
Status: - Update
Posts: n/a
Shug, intercooler will improve power slightly but isn't essential. Marlon's right - the ECU would need re-mapping and the compression ratio would need lowering significantly. Some people do this by fitting two or more head gaskets but this is asking for problems - either fit a single thicker one (if available) or get the pistons machined/changed.

Before doing any work satisfy yourself that the turbo itself is OK and not nearing the end of its life - would be a pity to do all that work and find that it's knackered.

If you want to run a low-pressure setup as f2g suggests you will need a smaller turbo than the Saab one - it won't be efficient at low boost because it's too big.

One other thing you might need to do depending on your boost level is fit different injectors if the standard ones can't pass enough fuel to keep up.

Chip Wizards specialise in custom turbo setup so once you've done the mechanical work they'd be able to set it up and program the ECU on a rolling road near you - see Chip Wizards for details. They might advise you on doing the job before you start as well.

Go for it, but go for it with your eyes open to all the potential problems! Autodelta spend a long time perfecting their turbo installations....


Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa 155

fitting , turbo

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

For the best viewing experience please update your browser to Google Chrome